CVE-2025-2370 TOTOLINK EX1800T cstecgi.cgi setWiFiExtenderConfig stack-based overflow

High 8.7 Published 17 Mar 2025 Updated 17 Mar 2025

Remote attackers can trigger a stack-based buffer overflow in the WiFi extender configuration interface to execute arbitrary code.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-2370?

CVE-2025-2370 is a high-severity memory corruption vulnerability in TOTOLINK EX1800T, published on 17 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in TOTOLINK EX1800T up to 9.1.0cu.2112_B20220316. It has been declared as critical. Affected by this vulnerability is the function setWiFiExtenderConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument apcliSsid leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-787, CWE-119

Which versions are affected by CVE-2025-2370?

It affects 1 product.

Products include Totolink Ex1800t Firmware.

How do I fix CVE-2025-2370?

No fix has been published for CVE-2025-2370 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-2370 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2370 exists.

Sources

Also known as GHSA-4qcq-c33q-9hm3.